"He is so sweet and wonderful and he did such a great job with everything he did for this film and everything he brought to it. I'm really grateful to have been in it."

When Liv first met with director Louis Leterrier for the role of Bruce's love interest Betty Ross, she had no idea what the story would be about.

"Edward was signed on to be in the film but he was in the middle of writing the script," she said.

"There was no script. I wasn't allowed to read a script. I met with the director, and there was a big Hulk in the office and I was like 'oh my God.' And then I was like 'okay, I will be the Hulk's lover'."

Unlike the Hulk, Liv, who has a three-year-old son Milo, doesn't get angry that easily.

"Everyone keeps asking me, 'what happens when you get angry?'" she said. "I don't get angry that much, but I did get really mad the other day at a cab driver when he tried to run me and Milo over. I kicked the side of his cab, and he called me every name in the book, it was so horrible.

"I wished I could have turned into the Hulk at that moment and crushed him."